"Whiteboard" Animation for Architects

Hi there
I am looking for someone to help me to create a short corporate video for one of my clients, who works in the architect/surveying world. I wish to tell a story about who they are and what they do in about 60-90 seconds, using a whiteboard animation with a twist, so that it looks like the type of table an architect or surveyor might have used (in the past) to draw up his plans, with a few props on it like pencil, compass, protractor. Script and voice over will be provided separately. I will look to whoever does this to provide their own creative interpretation and I assume I will be provided with a story board or similar to explain how things will knit together. I am willing to pay more if you think it is required. I am estimating that we will need up to three days to deliver this; I might be wrong, of course..! As always, I like to work with positive, professional people, based in the UK and I can promise you will be given every respect, paid quickly and allowed to express your creativity. This is a good example of what I am after http://www.youtube.com/watch?v=u6XAPnuFjJc if at all possible. Finally, the client wishes to be perceived as both creative and technical (because they deliver both architectural design and building surveying services) - which is why I think this type of "fun" approach to showing one's credentials will support the new branding and website we are also creating for them as we speak..! The new website will launch later this week and "work in progress" can be viewed (in Chrome) at http://ahpdev.squarespace.com/. I look forward to hearing from you. Steve